Dogs are surprisingly adept at sniffing out lung cancer, results from a pilot project in Austria published on Wednesday suggested, potentially offering hope for earlier, life-saving diagnosis.

Cavemen were better at drawing four-legged animals in motion in their art than modern artists, a study said Wednesday.

If you thought NASA's latest Mars landing was a nail-biter, get ready for a sequel.

Fossilised bones unearthed by a British paleontologist in colonial Tanzania in the 1930s may be those of the oldest dinosaur ever found, researchers reported on Wednesday.

Astronomers are reporting a find that challenges traditional theories as to how rocky planets — such as Earth — are formed.

Researchers have found bacteria thriving beneath ice, in the dark and without oxygen in a lake in Antarctica, pushing the boundaries of what was thought necessary to sustain life on Earth.

The U.S. space agency says it is monitoring a massive dust storm on Mars that has produced atmospheric changes.

Australia's native animals are being fed nauseating sausages of cane toad meat in a bid to train them against eating the foul, toxic species as it spreads into new areas, researchers said Tuesday.

Lonesome George, the late reptile prince of the Galapagos Islands, may be dead, but scientists now say he may not be the last giant tortoise of his species after all.

NASA downplayed Wednesday talk of a major discovery by its Martian rover after remarks by the mission chief raised hopes it may have unearthed evidence that life once existed on the Red Planet.